Hacks

https://www.chess.com/variants/atomic/game/77520263/28/1

Check doesn't matter if you can explode the other king, and you're a 2072 so I know you know this xD

...

lmao no way he said that with 750 games

I have yet to see a cheat that tricks chess.com into changing the rules of a game.

as far as I can tell, there were no cheats involved. In fact, black was just losing until you blundered M1...